OBJS

OBJS (IDE section)

Supported games:	GTA III, GTA VC, GTA SA, GTA IV
Brief description:	Used to define standard map objects
IDE Sections: 2DFX • AMAT • ANIM • CARS • HIER • HAND • MLO • OBJS PATH • PEDS • TANM • TOBJ • TREE • TXDP • WEAP

OBJS is a section in the item definition file. It is used to define standard map objects. There are also sections to extend default object definitions:

• TOBJ for defining an additional ingame time range the object gets rendered in.
• ANIM which links an animation to an object.
• TANM which does both of the previously mentioned sections.

Format

GTA III, Vice City and San Andreas

ID, ModelName, TextureName, ObjectCount, DrawDistance, [DrawDistance2, ...], Flags

Identifier	Description
ID	Unique object ID.
ModelName	Name of the .dff model file without extension.
TextureName	Name of the .txd texture dictionary without extension.
ObjectCount	Number of clumps. 1 by default and optional for San Andreas.
DrawDistance	Draw distance in units (one for each clump).
Flags	Object flags (see below).

GTA IV

ModelName, TextureName, DrawDistance, Flags, Unknown, MinX, MinY, MinZ, MaxX, MaxY, MaxZ, SphereX, SphereY, SphereZ, Radius, LOD Model

Identifier	Description
ModelName	Name of the .wdr model file without extension.
TextureName	name of the .wtd texture dictionary without extension.
DrawDistance	Draw distance in units.
Flag1	Object flag (see below).
Unknown	Unknown integer (0 by default).
MinX, MinY, MinZ	Lower left corner of the bounding box for the object.
MaxX, MaxY, MaxZ	Upper right corner of the bounding box for the object.
SphereX, SphereY, SphereZ	Center of the bounding sphere for the object.
Radius	Radius of the bounding sphere into all dimensions.
LOD Model	Name of the .wdd file that contains the lod model for the defined modelname.

GTA IV stores bounding informations inside the item definitions for better performance. The previous games stored bounding informations inside the collision files. Also it uses the hashes of the model names as a key of an hash table instead of the ID as an index to the definition array for previous games.

Object Flags

Flags are used to specify the behaviour of objects. They are signed 32-bit integer values where each bit descripes an boolean value of an special aspect.

Flag	Supported games	Binary	Description
-1	–	1111 1111 1111 1111 1111 1111	Enables all flags. [1] Never used by default.
1		0000 0000 0000 0000 0000 0001	Wet effect (objects appear darker).
2		0000 0000 0000 0000 0000 0010	Indicates that the object gets rendered at night for objects defined in TOBJ.
4		0000 0000 0000 0000 0000 0100	Alpha transparency 1
8		0000 0000 0000 0000 0000 1000	Alpha transparency 2
16		0000 0000 0000 0000 0001 0000	Opposite to flag 2
32		0000 0000 0000 0000 0010 0000	Indicates an object to be used inside an interior.
64		0000 0000 0000 0000 0100 0000	Disables the shadow mesh to project a shadow.
128		0000 0000 0000 0000 1000 0000	Object surface will not be culled.
256		0000 0000 0000 0001 0000 0000	Disables draw distance (Only used for LOD objects with an LOD value greater than 299).
512		0000 0000 0000 0010 0000 0000	Object is breakable (like glass – additional parameters defined inside the object.dat file, otherwise there is no effect).
1024		0000 0000 0000 0100 0000 0000	Similar to flag 512: object first cracks on a strong collision, then it breaks (does also require object.dat registration).
2048		0000 0000 0000 1000 0000 0000	Indicates an object as an garage door (for more information see GRGE – requires object.dat registration).
4096		0000 0000 0001 0000 0000 0000	Indicates an multiclump object (Object switches from clump 2 to clump 1 after collision – requires object.dat registration).
32768		0000 0000 1000 0000 0000 0000	Uses object brightness from the current weather definition (See timecyc.dat – PoleShd).
65536		0000 0001 0000 0000 0000 0000	Object explodes after getting hit (requires object.dat registration).
131072		0000 0010 0000 0000 0000 0000	Unknown – apparently some flag for the Script.
262144		0000 0100 0000 0000 0000 0000	Unknown – only used 1 time in San Andreas.
1048576		0000 1000 0000 0000 0000 0000	Object will switch from clump 2 to clump 1 after getting sprayed by the player (graffity flag).
2097152		0001 0000 0000 0000 0000 0000	Disables backface culling – as an result the texture will be drawed on both sides of the model (Always enabled for GTA III and Vice City)
4194304		0010 0000 0000 0000 0000 0000	Unknown – apparently related into physics.

See also

• Item definition
• TOBJ
• ANIM
• TANM